Tractor.



W1. TURNER.

TRACTOR.

1.1 1 11211111111 FILED MAY 29.111116.

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TRACTOR.

APPLICA ION FILED MAY 29 I916.

Patented 0m. 1918.

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a: z 28- WITNESS IN l/EIV TUB MY/iam 72: we)" krmrmm UNITED sTATEs PA ENT OFFICE.

WILLIAM TURNER, OF wEiIaToHEE, WASHINGTON.

TRACTOR.

7 '0 all-11.7mm it may concern:

Be it known that 1 WILLIAM TURNER, citizen of the United States, residing at l'Venatchce. in the county of Chclan and State of hishington, have invented a certain new and useful Improvement in Tractors, of which the following is a sliiecification.

My inventioi'i relates to irnprovenlents in lllOlUl vehicles which are adapted to carry freight and to serve as a tractor in the operalion of drawing other vehicles, and the ob jrct ofniy invention is to provide a motor vehicle which shall embody a motor, as an. internal conihustion engine, and two large tractor wheels each independently rotatable, which molor vehicle shall be adapted operal'iitely to travel over soft, rough and uneven ground and to turn in. a circle of small radius and which shall he Sill'lPlB in its plan of con-' struction and reliable inits operation;

I accomplish this object bydevices illus trated in the accompanying drawings, where-- in- Figure 1 is a plan View of one form of vehicle embodying my invention showing one or its two tractor Wheels in horizontal .mithsection; Fig: 2 is a view in side elevation of the same; Fig. 3 is an enlarged view of one of the tractor wheels of the same, in 'vertical. section on broken line :1, a2 ofFig. 1; and Fig. 4; is an enlarged View of the same tractor wheel in -\'ei.'lr.ical erosssection on broken line; 1 y of Fig. 2.

Retort-ing to the drawings, which like refereruze numerals designate like parts, two tractor wheels 5 ando of like dimensions each comprising whollowcylin der whose peripheryservesas a tractor surface and each of which is provided with an annular rib 7 that is disposed to project" inwardly from its interior surface adpteent 8. and}? that are spaced from each; other and internal circular surface of said ribs 7, 8 and 9 serving to form a trackway that'may en gage with rollers-in a'ma-nner hereinafter "r u. H

icured to mend between the annular ribs 8 and 9 are ia plurality ofequi distantly spacet'l bolt-shafts 10npon each ofwhich is rotatably mounted a section of tribe, thus to mt one of the teeth '11 of annular thed rack whose teeth 11 li' gear-wheels (which are linen-e1 Specification of Letters Patent.

throu ghout 3 i I d toothed rack) es hereinafterdscrib Patented Oct. 22. 1 918.

Application filed May 29, 1916. Serial Nd. 100,668.

I Also, each of thc cy-linders of the tractor wheels 5 and (l is pri'nided with an additional annular rib 12 disposed to project from its internal surface at a point equidistant from its ends. whercln' the internal surfaceof said rib 19. may serve to engage with a roller as hereinafter described. Disposed within each of the tractor wheels 5 and-6 isa rectangular truck. frame havinga side rail 13 and an oppositely disposed side rail made of three pieces 1%, l5 and -16, the pieces H and 15 being! connected together by the piece :10 which is bolted to the to surface of the separated end portions of said pieces 1%. and 15, as more clcarl shown 11) Fig. 3, said side rails being connected together by end rails 17 and 1S and by crossharslll and 20, all of said rails and crosabars lwine' made of liars of channel iron secured to get-her by bolts. I

. Fastened to the bottom surface of each of the side rails of each of said truck frames are bearing brackets, as brackets 21 and 22 within which are rotatably mounted shafts 2-3 and 24 f Mounted securely on the inner end portions of the shafts and 24: are flanged rolland -26 respectii ely and mounted securely on the outer end portion. of each or the shafts i225 and 124-. are two rollers, as

gem-wheel 32 are such as to adaptthe rollers and 2610 engage with andrest upon the annular:flange 7. \\'hile the rollers 27 and 29 engage with and rest upon the annular flange Si the rollers :28 and 30 engaging'witli and resting u )011 the annularflange 9 while the gearwhee s 81 and 32 operatively engage with the teeth 11 of the annulartoothed rack whereby a frotatiolroli' said gem-wheels 31 and 32*will cause the respective one of the tractor wheels 5 and (3 ton-evolve thus to travel over the surface of theground. Extending through and between the end rails; 17 and '18 andthe cross-bars 19 and 20 ofeaoh'o-f'the rectangular truek frames is a securely fixed shaft 33, as more clearly shown in Fig; 3, and freely mounted fto swing on said shaft at a point between said cross-liars wand 201s an arine-4 which '55 n which forms: a socket within which is con-j extends downwardly therefrom, and to each of opposite sides of such downwardly extended arm 34 is securely bolted one end of a different one of two beams 35 and 36, of'

,extends through the space between said tractor wheels and 6, as more clearly shown in Fig. 1, and thus said tractor wheels 5 and d fi'i'ndependently may tip in sidewise direc- V respective tions when traveling over uneven surfaces.

. Secured to the end rails 17 and 18 of each of the truck frames is afour-legged bracket 37 which extends upwardly, and its upper end ortion is formed like a socket within whic is slidably disposed a rod 38 whose upper end is bifurcated and provided with a roller 39 which is maintained in engagement with the annular rib 12 by a means of a helical compression 'sprin 40, as shown.

the rollers more clearly in Fig. 3, .where of said truck frame are maintained in their ositions on the annular ribs 7, Band 9, an whereby the gearwheels 31 and 32 may not be disengaged from the teeth 11 of the toothed rack.

Securely mounted on the top surface of tached to the under side of the forward end the rail 13, in the central portion (thereof is a bearing bracket 41, within which is disposed one end porton of a rotatable shaft 42 which extends through and projects beyond a bearin formed inthe bracket 37 as more clearly s own in Fig. 4, and. mounted securely on said shaft 42 is a' sprocket wheel 43 adjacent to. said bracket 41, while on the other end portion of said shaft 42, that projects beyondysaid brackets 37, is securely 1 mounted a s rocket wheel 44.

As more c early shown in Fig, 2, there is disposed to engage withsaidsprocket wheel 43 an endless sprocket chain 45 which extends 'to and engages with both of the.

sprocket wheels 68 and 69 which are mounted on shafts 23 and 24, whereby said shafts 23 and 24'may be ro'ta'tediin response to fa .-5.0

rotation of the shaft 42. Freely mounted on each end portlon, of

the shaft 33 of. each truck frame to extend upwardly. therefrom is a cylindrically fol'rried'stud (as studs 46 and which is provided with a concentrically dlsposed hole fined ahelicalcompression spring (as helical brackets 50 and 51) which braceket is telescopically associated'with the respective one ofthe studs 46 and4'7, as more clearly shown in.Fig.'.3,

Thebrack'ets 50 and 51 are securely bolted respectively to cross-rails 52 and 53, of channel iron, which extendbetween and unite side bars 54 and 55 of a lead frame 56 as more clearly shown in Fig. 1.

Fastened to the cross-rails 52 isa bracket bearing 67 within which. is rotatably disposed a shaft-57 upon'one endof which is mounted a sprocket Wheel 56 which engages with a sprocket chain 59' that is extended to and engages with the sprocket wheel 44, the other end of said shaft 57 being connected with a driving shaft of a motor 60 (as for instance a gas engine) by mea of a common form of transmission clutch, as transmission clutches 61, said motor 60 being mounted'onthe cross-[rails 52 and 53 between the tractor ew'heels' 5land 6 as shown more clearly in Fig. 1. a J

By suitable well known means-(not shown the transmission clutches 61 may be operated in a well known manner to control the communication of rotary motion from the motor 60 to the shafts 57 to cause each of said shafts 57 independently to rotatein either direction as may be required at different times.

Secured to. the two beams 35 and 36 in a position between the two tractor wheels 5 and 6 is a ke frame 62, of bars of channel iron, which extends forwardly and rearwardly'from said beams 35 and 36 and atof said frame 62 is a vertically adjustable wheel 63 while to the rearward end of said frame 62 is attached a wheel 64 by means of a bifurcated bracket that is pivotally joined to said frame 62.

Upon the load frame 56 in the front and in the rear of the tractor wheels 5 and 6 is a floor (as floors 65 and 66 respectively) upon which may be placedarticles to be trans ported;

The operation of a vehicle embodying my invention may be described as follows: The motor 60'is started and thereupon the transmission clutches (il'are manilmlated-to com municate rotary motion in ,a' desired direc-' tion to the shafts 57 whereupon the sprocket chains 59 will communicate motion to the shafts 42'to cause the sprocket chains 45 rotate the geai'wheels 31 and 32 which will rotate the tractor wheels 5 and 6 each at the same speed to go in a straight courseor each at a different speed to go in a circu-- lar course as may be desired.

In its travel each of the tractor wheels 5 and. 6 may tip sidewise independently of the other, and the load frame '56 will be yieldingly supported. by the helical springs 48 v and 49.

The large diameterand great width of the tractor wheels 5 and (5 adapt-s them to travel over very rough and very soft surfaces with little resistance.

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axis transverse to, the axis member's and'which axis extends longitudinally of the direction of travel of the traction members to permit thesame to tilt laterally. p

14. In a machine of the character described, the combination of a pair of rotatable traction drums, tracks within the interior of said drums, a truckframe within each drum, wheels on the-truck frames to travel. upon the tracks,'and a load carrying frame pivotally connected to the trucks.

15. In a machine of the character described, the combination of a pair of rotatable traction drums, circular tracks within the drums, supporting members within the drums having wheels to travel upon said.

tracks, a load carrying frame pivotallyconnected to each supporting member Within each drum, and means upon each supporting member within each drum for transmitting motion to the drums to drive the same.

16. In a machine, of the character described, the combination of a-pair of rotatable drums having tracks, a supporting member within each drum havin wheels to'travel upon said tracks, a yo e frame pivotally' connected at its ends to said members, and means member, a pair of toothed wheels to turnwithin each drum thereto to drivethe same.

17.111 :1 machine of scribed, the combination of a I air of rotatable traction drums," a whee supported member within each said tracks, a loagfiarryin g attachedto said. heel supported members within the drums, and yielding means for supportin said-whee members. a

18. In a machine ,of the character described, the combination of a traction drum, a circular track within the drain, a. supporting member, a pair of friction wheels to run upon the track, and carrying the supporting and means ;on the with the friction wheels,

be engaged by drum along its periphery to the toothed wheels.

19. In a machine ofthe character de' scribed, the combination of a pair of ro-.

within the tatable, drums, circular tracks axles upon frames within the drums, the. frames, wheels upon the the tracks, toothed; wheels uponthe axles, means within each drum to be engaged by the toothed wheels for driving the drums, a load carrying frame connecting the frames in the-drums, and means for transmitting motion to the axles for the drums.

20. In a machine of the character de-' of the traction interior circular;

the trucks and adapte pivotally supported for transmitting motion the character de-- independently drum to travel upon 'same. frame pivotal ly truck frame in each drum the load carrying frame upon run upon said tracks, a

axles to -engage scribed, the combination of a traction, drum.

having an extended contact surface, tracks within the drum near each end thereof, a frame, wheels on the frame engaging the tracks, a toothed wheel on the frame, means V adjacent the interior surface of'the drum adapted to he engaged by the toothed Wheelfor driving the drum, and means carried by the frame for transmitting motion to the toothed wheeL '21. In a machine of the character described, the combination of a pair of retatable traction drums having extended contact surfaces, circular track's Within the drums, a framefwithin each drum, on each frame engagin vthe tracks, a load carrying frame pivotalI mittingmotion to each drum independently of the other for driving the drums.

22. In a machine of the character .de-. scribed, the combination of a pair of rotatable traction drums, a truck within .each

drum for supporting ,wheels, to travel therein, a yoke frame ivotally' attachedto ward or rearward tiltin of the trucks within'the' drums, a loa carrying frame upon the trucks to turn u on axes coincident with the axes of the pivotal connection of theyoke frame with the trucks, and means carried ofthe load frame for transmitting motion to each drum to drive-the 23. In a machine of the character deto prevent the forby each truck;

wheels connected to the frames in the drums, and means for trans-' scribed, the combination of a pair of traction drums having mterior clrcula'r tracks, a having wheels to toothed wheel 10erried by each truck, means upon the interior surface of each by said toothed wheels for driving the drums, a yoke frame pivotally its ends to said truck frames, a load carry ing frame, yielding means for supporting the load carrying frame upon the trucks, and pivotally attached thereto to turn upon axes coincident with the axes of the pivotal connections of the yoke frame with the trucks,

'a motor carried by the load frame between the traction drums, and means for transmitting 'motion from the motor to each toothed wheel within each thedrums.

In witness whereof I hereunto subscribe my name this 20th (a of May, A. D. 191 6. p W LLIAM TURNER. Witnesses r FRANK WARREN,

A. HASKINS.

drum adapted to be'engaged connected at:

drum for driving 

